The original recipe can be found here:
I should also mention that I opted to not use the buttercream icing shown on the website. Instead, I used a vanilla and a chocolate frosting, with a few variations on decorations.
The results of all this Christmas Baking and Experimenting can be found here:
Snowball Cupcakes , a set on Flickr.
And, be sure to check these out, they are really tastey, and useful in cupcake-baking!: